• 한국축산식품학회지
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• 제38권4호
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• pp.664-678
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• 2018

This study was carried out to establish shelf life for pork cutlet of ground meat and pork lard by using various quality indicators and to understand how quality changes in these products are accelerated by temperature. The samples were selected and purchased from markets in Korea, and the chosen quality indicators were total aerobic counts and coliform group in microbiological analyses, thiobarbituric acid reactive substances assay, volatile basic nitrogen, pH, acid value, and peroxide value in physical chemical analyses, and sensory evaluation. The pork cutlet samples were stored at $-18^{\circ}C$, $-6^{\circ}C$, and $-1^{\circ}C$, whereas pork lard samples were stored at $10^{\circ}C$, $25^{\circ}C$, $35^{\circ}C$, and $45^{\circ}C$. These temperature conditions were set to real distribution conditions. The samples were then analyzed using various models including of reaction orders, arrhenius equation, and $Q_{10}$ value. The quality limits for each sample were calculated, and shelf life was estimated. The results of this experiment highlighted the importance of temperature control during the distribution process of these products and revealed that temperature is a useful parameter for the establishment of a basic database for shelf life.

• 한국게임학회 논문지
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• 제9권4호
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• pp.45-56
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• 2009

유아의 감성, 인지 발달을 위해서는 시각, 청각, 그리고 촉각 등의 감각통합이 필요하다. ICT의 발전 덕택에 유아는 학습과정 중에 다양한 감각을 사용할 수 있는 더 많은 기회를 갖게 되었다. 그러나, ICT 교육법은 단지 시청각에 중점을 두고 있어 통합인지가 부족하며, 이러한 사실은 ICT가 왜 주교보재로 사용될 수 없는지를 보여준다. 따라서 본 연구에서는 컴퓨터 퍼즐게임을 이용한 wUbi-Pen(촉각펜)의 인지 효과를 평가하였다. 실험 결과, wUbi-Pen을 이용해 햅틱 퍼즐 놀이를 한 경우 햅틱 기능이 없는 펜을 이용해서 퍼즐 놀이를 한 경우보다 K-WPPSI의 5개 동작성 평가 중 모양 맞추기, 미로, 빠진 곳 찾기 등 3개 영역에서 유의미한 차이를 보였다. 이러한 결과는 ICT 교재의 개발에 있어 촉각 기능의 필요성을 제시하고, 더 나아가 인지에 관련된 다양한 증상에 효과적인 교보재로 사용될 수 있음을 보여준다.

• 한국의류학회지
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• 제19권6호
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• pp.1008-1016
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• 1995

The purpose of this study is to examine the vest patterns with better fitness, function and beauty best suited to the bodies because the previous studies on the vest pattern are not enough to be usable for its making and wearing including the emperiment and practice as well as its direct design and cutting although its wearing range has been widely popular. This study was carried out by making the experimental vest and performing its wearing experiment. The result of this study is summarized as follows. 1. The sensory evaluation on apperance showed that the wholoe average of pattern 4 was the highest for all S, M, L bodies. In addition, it was shown by the bodies that the most suitable related patterns included pattern 4-M body, pattern 2-S body and pattern 4-L body. However, the L body indicated the lowest score in all patterns. Then, this fact means that the diversified studies must be carried out on the vest patterns for the bodies. 2. The results on the function of vertical motions indicated that when the motion angle increased the lifting volume of the vertical motion also increased proportionally, and that the motion at $135^{\circ}$ among these verical motions showed the highest score. Therefore, it is required to consider this fact when determining the vest length in the process of making the vest pattern. 3. The results on the twisted degree of a posture showed that as to the experimental results on these vertical motions the twisted degree increased with the increase of angle. This fact seems to be also important in deforming the vest length when making the vest.

• 한국축산식품학회지
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• 제40권4호
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• pp.541-550
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• 2020

The use of yeast assist kefir fermentation, but also can cause food spoilage if uncontrolled. Hence, in this study, the microbial composition of an existing commercial kefir starter was modified to produce a functional starter, where Lactobacillus acidophilus KCNU and Lactobacillus brevis Bmb6 were used to replace yeast in the original starter to produce non-yeast kefir-like fermented milk. The functional starter containing L. acidophilus KCNU and L. brevis Bmb6 demonstrated excellent stability with 10¹⁰ CFU/g of total viable cells throughout the 12 weeks low-temperature storage. The newly developed functional starter also displayed a similar fermentation efficacy as the yeast-containing control starter, by completing the milk fermentation within 12 h, with a comparable total number of viable cells (10⁸ CFU/mL) in the final products, as in control. Sensory evaluation revealed that the functional starter-fermented milk highly resembled the flavor of the control kefir, with enhanced sourness. Furthermore, oral administration of functional starter-fermented milk significantly improved the disease activity index score by preventing drastic weight-loss and further deterioration of disease symptoms in DSS-induced mice. Altogether, L. acidophilus KCNU and L. brevis Bmb6 have successfully replaced yeast in a commercial starter pack to produce a kefir-like fermented milk beverage with additional health benefits. The outcome of this study provides an insight that the specific role of yeast in the fermentation process could be replaced with suitable probiotic candidates.

• 제어로봇시스템학회논문지
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• 제16권9호
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• pp.827-832
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• 2010

Many researchers have tried to detect the falling and to reduce the injury associated with falling. Normally the method of detection of a loss of balance is more efficient than that of a compensatory motion in order to predict the falling. The detection algorithm of the loss of balance was composed of three main parts: parts of processing of measured data, construction of an internal model and detection of the loss of balance. The internal model represented a simple dynamic motion balancing with two rear legs of a four-legged chair and was a simplified model of a central nervous system of a person. The internal model was defined by the experimental data obtained within a fixed time interval, and was applied to the detecting algorithm to the end of the experiment without being changed. The balancing motion controlled by the human brain was improved in process of time because of the experience accruing to the brain from controlling sensory organs. In this study a reconstruction method of the internal model was used in order to improve the success rate and the detecting time of the algorithm and was changed with time the same as the brain did. When using the reconstruction method, the success rate and the detecting time were 95 % and 0.729 sec, respectively and those results were improved by about 7.6 % and 0.25 sec in comparison to the results of the paper of Ahmed and Ashton-Miller. The results showed that the proposed reconstruction method of the internal model was efficient to improve the detecting performance of the algorithm.

• Maxillofacial Plastic and Reconstructive Surgery
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• 제33권1호
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• pp.89-92
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• 2011

Herpes simplex is caused by viruses of the herpesvirus hominus family. HSV have four categories: type 1, 2, 6, and 8. Generally HSV-1 affects the mouth. Once infected by HSV, the person's infection is permanent. Retrograde transport through adjacent neural tissue to sensory ganglia leads to a lifelong latent infection. Recently, we treated a patient with recurrent herpes-stomatitis mimicking acute necrotizing ulcerative gingivitis (ANUG). The results were satisfactorty so we report this case. 31 years old male patient showed sore throat, gingival ulceration, palpable both submandibular lymph node, and sulcular pus formation around posterior decayed teeth. This is the third time he has suffered from this symptom. Tentative diagnosis was acute necrotizing ulcerative gingivitis. Antibiotic therapy was started. But, intraoral symptom got worse in process of time. Especially ulcer of marginal gingiva got worse. Viral disease was suspected. We carried out viral cultivation. At the same time topical application of antiviral ointment (herpecid$^{(R)}$) was performed on oral ulcer unilaterally for the purpose of diagnosis and reducing pain experimentally. The next day pain was decreased dramatically on application area. Basing on the viral cultivation and clinical effect of antiviral ointment (herpecid$^{(R)}$), we have diagnosed it as a recurrent herpes-stomatitis and concluded that viral infection was major cause of disease and bacterial infection was secondary.

• The Korean Journal of Pain
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• 제9권2호
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• pp.407-411
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• 1996

Stereotactic radiofrequency dorsal root ganglionotomy can be very useful procedures for the treatment of pain emanating from the lumbar segmental nerves. This procedure is reserved for patients who have failed conservative interventional treatments and in whom open surgical intervention is not an option. The advantages of the radiofrequency lesion method are presented, excellent control of the lesion process using temperature monitoring to quantify the lesion size, prevent boiling, and to produce differential destruction of neural tissue. The afferent fibers in the ventral root which are spared by dorsal rhizotomy but nerve fibers with their cells in the ganglion from either dorsal or ventral root can be destructed with stereotactic radiofrequency ganglionotomy. This technique is performed using a 100 mm cannula with a 5 mm active tip. Repeated lateral fluoroscopic view should be taken to make sure that cannlua still resides within the superior, dorsal quadrant or the foramen. With the cannula in this position, electrostimulation is performed and good paresthesia on the leg should be noted with 0.3 and 0.5 volt at 50 Hz stimulation. At 2Hz stimulation distinct dissociation between motor and sensory should be shown. Percutaneous lumbar ganglionotomy have carried out under local anesthesia on inpatient basis in 6 patients. A series of 5 patients with metastatic cancer pain and a patient with compression fracture have been relieved of pain without serious complications.

• 대한원격탐사학회지
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• 제28권1호
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• pp.55-67
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• 2012

멀티센서 시스템으로부터 취득된 영상을 이용하여 공간정보를 신속하게 생성하기 위해서 영상의 실시간 지오레퍼런싱이 요구된다. 위치/자세 센서의 성능을 보완하며 실시간 처리가 가능하려면 연속 추정 알고리즘을 활용한 온라인 항공삼각측량이 수행되어야 한다. 본 연구는 연속적으로 취득되는 영상의 실시간 지오레퍼런싱을 위한 효율적인 온라인 항공삼각측량 방법론을 도출하고자 한다. 기존의 기븐스 변환 갱신 알고리즘과 최근 개발된 관측값 분류에 기반한 정규행렬 역행렬 갱신 알고리즘을 활용하여 온라인 항공삼각 측량을 구현하였다. 정확도와 연산 속도 측면에서 두 알고리즘의 성능을 비교 검증하기 위하여 항공 멀티센서 시스템으로부터 취득된 센서 데이터를 모의 생성하고 이를 적용하였다. 적용 결과, 관측값 분류에 기반한 정규행렬 역행렬 갱신에 의한 온라인 항공삼각측량이 기븐스 변환에 의한 방법보다 추정된 지상점 좌표에 대하여 40 % 이상 높은 정확도를 보이고, 8배 이상의 빠른 처리 속도를 나타내었다. 따라서, 영상의 실시간 지오레퍼런싱을 위하여 정규행렬 역행렬 갱신에 의한 온라인 항공삼각측량이 더 적합한 것으로 판단되었다.

• 한국의류산업학회지
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• 제14권2호
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• pp.294-303
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• 2012

This study was designed to develop air force mechanic parka, evaluate it, and ultimately provide functionally superior parka to the air force. The development process was 1) conducting a survey, 2) identifying problems and shortcomings of currently-supplied parkas, and 3) improving the design, pattern and materials. The newly-developed parkas were evaluated in terms of their ease of fit, clothing mobility, and insulation. Ease of fit was evaluated by subjects' sensory tests, and clothing mobility was by fitness-for-motion tests and range-of-motion tests using a Goniometer. Evaluation on insulation was conducted by thermal manikins. Findings of this study were as follows: 1. In the subjective evaluation on clothing mobility, new parkas were considered to have sufficient ease of fit while previous ones scored much lower, confirming the improvement of the new version. 2. Both subjective tests and ROM measurements on fitness for motion verified the superiority of the new parkas. 3. Insulation tests found that although insulation capability of newly-developed parkas was at a similar level to those of the previous ones, their insulation capability per unit weight was superior, demonstrating that new parkas were better at blocking heat conduction. When making changes in parka patterns and designs to enhance the mobility, it was necessary to maintain the insulation function. The new parkas developed by this study was verified to be superior to the previous ones in their insulation and clothing mobility.

• Asian-Australasian Journal of Animal Sciences
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• 제20권7호
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• pp.1127-1134
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• 2007

Gels were made from surimi-like pork (SLP) made from muscles obtained at 1, 24 and 72 h post-mortem. The SLP from pre-rigor muscle had higher pH and moisture percentage compared to in- or post-rigor muscles. Also, SLP from pre-rigor muscle showed higher concentration of water-soluble protein that was washed out during the process. Gel from post-rigor muscle exhibited higher a* and b* value, and also resulted in higher Chroma and lower hue values. The dark color of gel from post-rigor muscle was related to higher concentration of sarcoplasmic protein in SLP and denser structure in the gel matrix. SDS-PAGE showed higher intensity of the phosphorylase in the sarcoplasmic protein fraction from pre-rigor muscle. Gel from post-rigor muscle showed higher hardness and sensory firmness, and the greater firmness was related to higher concentration of protein in SLP, and a compact network with smaller pockets in the gel matrix.